In short: Yes.

It is the "batteries included" version of Haskell that comes with basically everything you need to write production ready software. There are obviously a lot of useful packages on `cabal`, but they are mostly useful so that you don't have to recreate the wheel (or want to do web-dev).

Yes, and there's some excellent freely available books to go with it

http://www.linuxlinks.com/article/20130316105209238/BestFree...

http://www.reddit.com/r/haskell/comments/1af3iw/9_best_free_...

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this is a good intro slide deck: http://fvisser.nl/post/2013/april/23/slide-cfams-talk.html

See their wiki on what is Haskell and the advantages of functional programming:

http://www.haskell.org/haskellwiki/Introduction

It's also meant to be used as a reference for distro package maintainers. If your code builds properly with the current platform, you can be confident it will build properly in most systems.

> Is this for someone who would like to start learning Haskell?

This is were said somebody goes to download Haskell after having been persuaded to give it a chance.